In which of the following sentences is the word “bank” used with a different meaning from the rest?

The correct answer is: "The anglers decided to set up their fishing rods along the muddy bank of the river."

Explanation:
In the first three options, the word “bank” refers to a financial institution that provides services like loans, accounts, and money management:

• "investment bank" (a financial institution)
• "commercial bank" (a financial institution)
• "savings bank account" (an account with a financial institution)

In contrast, in the sentence "The anglers decided to set up their fishing rods along the muddy bank of the river," the word “bank” refers to the land alongside a body of water (a riverbank). Therefore, this sentence uses the word with a different meaning from the others.